本文整理了Java中org.apache.hadoop.metrics2.lib.MetricsRegistry.get()方法的一些代码示例，展示了MetricsRegistry.get()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。MetricsRegistry.get()方法的具体详情如下：
包路径：org.apache.hadoop.metrics2.lib.MetricsRegistry
类名称：MetricsRegistry
方法名：get

MetricsRegistry.get介绍

[英]Get a metric by name
[中]按名称获取度量

代码示例

代码示例来源：origin: org.apache.hadoop/hadoop-aws

/**
 * Look up a metric from both the registered set and the lighter weight
 * stream entries.
 * @param name metric name
 * @return the metric or null
 */
public MutableMetric lookupMetric(String name) {
 MutableMetric metric = getRegistry().get(name);
 return metric;
}

代码示例来源：origin: com.github.jiayuhan-it/hadoop-common

/**
 * Test various factory methods
 */
@Test public void testNewMetrics() {
 final MetricsRegistry r = new MetricsRegistry("test");
 r.newCounter("c1", "c1 desc", 1);
 r.newCounter("c2", "c2 desc", 2L);
 r.newGauge("g1", "g1 desc", 3);
 r.newGauge("g2", "g2 desc", 4L);
 r.newStat("s1", "s1 desc", "ops", "time");
 assertEquals("num metrics in registry", 5, r.metrics().size());
 assertTrue("c1 found", r.get("c1") instanceof MutableCounterInt);
 assertTrue("c2 found", r.get("c2") instanceof MutableCounterLong);
 assertTrue("g1 found", r.get("g1") instanceof MutableGaugeInt);
 assertTrue("g2 found", r.get("g2") instanceof MutableGaugeLong);
 assertTrue("s1 found", r.get("s1") instanceof MutableStat);
 expectMetricsException("Metric name c1 already exists", new Runnable() {
  @Override
  public void run() { r.newCounter("c1", "test dup", 0); }
 });
}

代码示例来源：origin: ch.cern.hadoop/hadoop-common

/**
 * Test various factory methods
 */
@Test public void testNewMetrics() {
 final MetricsRegistry r = new MetricsRegistry("test");
 r.newCounter("c1", "c1 desc", 1);
 r.newCounter("c2", "c2 desc", 2L);
 r.newGauge("g1", "g1 desc", 3);
 r.newGauge("g2", "g2 desc", 4L);
 r.newStat("s1", "s1 desc", "ops", "time");
 assertEquals("num metrics in registry", 5, r.metrics().size());
 assertTrue("c1 found", r.get("c1") instanceof MutableCounterInt);
 assertTrue("c2 found", r.get("c2") instanceof MutableCounterLong);
 assertTrue("g1 found", r.get("g1") instanceof MutableGaugeInt);
 assertTrue("g2 found", r.get("g2") instanceof MutableGaugeLong);
 assertTrue("s1 found", r.get("s1") instanceof MutableStat);
 expectMetricsException("Metric name c1 already exists", new Runnable() {
  @Override
  public void run() { r.newCounter("c1", "test dup", 0); }
 });
}

代码示例来源：origin: ch.cern.hadoop/hadoop-common

MutableStat s2 = (MutableStat) registry.get("s2");

代码示例来源：origin: com.github.jiayuhan-it/hadoop-common

MutableStat s2 = (MutableStat) registry.get("s2");

代码示例来源：origin: com.github.jiayuhan-it/hadoop-common

/**
 * Test the add by name method
 */
@Test public void testAddByName() {
 MetricsRecordBuilder rb = mockMetricsRecordBuilder();
 final MetricsRegistry r = new MetricsRegistry("test");
 r.add("s1", 42);
 r.get("s1").snapshot(rb);
 verify(rb).addCounter(info("S1NumOps", "Number of ops for s1"), 1L);
 verify(rb).addGauge(info("S1AvgTime", "Average time for s1"), 42.0);
 r.newCounter("c1", "test add", 1);
 r.newGauge("g1", "test add", 1);
 expectMetricsException("Unsupported add", new Runnable() {
  @Override
  public void run() { r.add("c1", 42); }
 });
 expectMetricsException("Unsupported add", new Runnable() {
  @Override
  public void run() { r.add("g1", 42); }
 });
}

代码示例来源：origin: ch.cern.hadoop/hadoop-common

/**
 * Test the add by name method
 */
@Test public void testAddByName() {
 MetricsRecordBuilder rb = mockMetricsRecordBuilder();
 final MetricsRegistry r = new MetricsRegistry("test");
 r.add("s1", 42);
 r.get("s1").snapshot(rb);
 verify(rb).addCounter(info("S1NumOps", "Number of ops for s1"), 1L);
 verify(rb).addGauge(info("S1AvgTime", "Average time for s1"), 42.0);
 r.newCounter("c1", "test add", 1);
 r.newGauge("g1", "test add", 1);
 expectMetricsException("Unsupported add", new Runnable() {
  @Override
  public void run() { r.add("c1", 42); }
 });
 expectMetricsException("Unsupported add", new Runnable() {
  @Override
  public void run() { r.add("g1", 42); }
 });
}